Celebrate London's architectural wonders as Open House London throws open the doors to hundreds of buildings in and around the capital.
You can visit more than 800 buildings, including The View from the Shard, 30 St Mary Axe (known by Londoners as The Gherkin), Citypoint and numerous private homes. There's also the chance to learn more about the city's edifices and landscapes with free architecture-themed walks, cycle rides and debates.
Among the more unusual highlights of this year's event are Nick Baker's eco home 25C Montpellier Road, and Ott's Yard, a series of repurposed sheds and a converted workhouse laundry.
There's something for all tastes, with the greenfingered catered for with more than 80 landscape-focused events and venues, family fun in the form of quiz trails and model-making, and a host of riverside buildings open in conjunction with Totally Thames.
This year's theme is 'Revealing', which focuses on how architecture is evolving to make London a more liveable city.